Electronic Step-Dim Ballast, Fluorescent, Input Voltage: 120/277V, Programmed Start, Optanium Series, For Use With The Following Linear Lamp Types: (2) F21T5 or (2) F28T5
- Type: Programmed Start
- Shape: T5 (Tubular)
- Wattage: 28
- Family / Style: Optanium
- Wattage: 21
- Wattage: 14
- Type: Electronic
- Volts AC Range: 208
- Volts AC Range: 240
- Volts AC Range: 120